KR101527284B1 - belt length adjustor - Google Patents

Abstract

[PROBLEMS] To provide a belt length adjuster which does not exert an excessive load on a belt fastening fastener.
The belt length adjusting means includes a pair of side portions formed parallel to each other at a predetermined interval, a first connecting portion and a second connecting portion orthogonally connected to the longitudinal direction ends of the side portion, And a belt tightening bracket that is loosely fitted between the elongated holes formed therein and is movable in the space surrounded by the pair of side portions and the first connection portion and the second connection portion in a direction close to the first connection portion or the second connection portion Wherein the belt fastening fastener is held in the elongated hole by a shaft section of a non-circular cross section formed at both ends, and regulating means for regulating the rotation of the shaft portion in the long hole is formed, and a belt wound on the belt fastening fastener And when receiving a tension in a direction approaching either one of the first connection portion or the second connection portion, Since the regulation of the shaking motion in the belt squeezing geolyidae, it can be prevented from consuming excessive load for a belt squeezing geolyidae.

Description

Belt length adjustor

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a belt length adjuster, and more particularly to a belt length adjuster capable of preventing an excessive load from being applied to the belt.

In general, as shown in Figs. 13 and 14, the belt length adjusting port is formed by a frame member 1 formed so as to have a rectangular inside space and a pair of long sides facing each other in a rectangular shape, (2) formed so as to be movable by a shaft portion (2a) having a substantially circular cross section in an elongated groove (3) formed on a pair of opposite sides of the remaining pair, Connecting rods 4 and 5 formed in parallel with the belt hanger member 2, a cross bar 6, and the like. 14, when one side of the belt 6 is wound around the cross bar 6 and the other side belt is wound around the belt hook member 2, the belt hook member 2 is moved in the leftward direction of Fig. 14 (See Patent Document 1).

Patent Document 1: Japanese Utility Model Publication Disclosure Open No. 60-140428

However, in the case of the conventional patent document 1, when the belt hooking portion 2 is pulled to tightly fasten the belt, the shaft portion 2a of the belt hooking member 2 loosely fitted in the long hole is excessively rotated There is a drawback that an excessive load is applied to the shaft portion, so that the frame body is deformed to cause operation failure.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a belt fastening hook which is held in an elongated hole formed in a side portion by a non- The present invention provides a belt length adjusting member which can prevent an excessive load from being applied when the belt wound around the belt fastening fastener is tightly tightened.

The present invention has the following contents.

(1) In order to achieve the above-described object, the present invention provides a belt length adjusting member used for adjusting the length of a belt wound between two points (points) or in a ring shape, A first connecting portion and a second connecting portion orthogonally connected to the lengthwise ends of the side portions, and a pair of second connecting portions and second connecting portions loosely fitted between the long holes formed along the longitudinal direction of the side portions, The belt fastening fastener according to any one of the preceding claims, wherein the belt fastening fastener is movable in a space surrounded by the first and second connecting portions, And a restricting means for restricting the rotation of the shaft portion in the elongated hole is formed, and the belt wound on the belt tightening fastener And the shaking motion of the belt fastening hook is regulated through the shaft portion when receiving a tension in a direction of approaching either the first connecting portion or the second connecting portion.

(2) Furthermore, the restricting means is a protruding portion formed to protrude into the elongated hole and to narrow the gap with the shaft portion loosely fitted.

(3) The protrusion includes an inclined surface whose height gradually increases toward one of the longitudinal direction of the elongated hole.

(4) The protruding portion and the shaft portion are in surface contact with each other.

(5) The elongated hole is formed to be vertically symmetrical with respect to the central axis in the longitudinal direction of the side portion, and the shaft portion is formed to be vertically symmetrical with respect to the central axis in the horizontal direction.

According to the present invention, there is provided a belt length adjusting opening used for adjusting the length of a belt wound in two points or in a ring shape, comprising: a pair of side portions formed in parallel at predetermined intervals; The first connection portion and the second connection portion are loosely fitted between the elongated holes formed along the longitudinal direction of the side portion, and the space surrounded by the pair of side portions, the first connection portion, Wherein the belt fastening fastener is held in the long hole by a non-circular shaft portion formed at both ends of the fastening fastener, And a belt which is wound around the belt fastening hook is engaged with the first connection portion or the second connection portion When receiving of the direction of tension close to either, because the regulation of the shaking motion in the belt squeezing geolyidae through the shaft portion, it is possible to prevent the belt squeezing geolyidae takes a heavy load.

In addition, since the restricting means is a protruding portion that narrows the gap between the shaft portion loosely fitted and protruding into the elongated hole, the shaft portion can easily come into contact with each other in the long hole.

Further, since the projecting portion includes an inclined surface whose height gradually increases toward one of the longitudinal direction of the elongated hole, the shaft portion can easily come into contact with each other in the elongated hole, and a strong force is applied to the belt- The rotation can be prevented by a strong repulsive force.

Further, since the projecting portion and the shaft portion are in surface contact with each other, a structure in which the shaft portions can easily come into contact with each other in the long hole can be obtained. In addition, it is possible to prevent the projection or the shaft portion from being broken by preventing stress concentration by the surface contact.

In addition, since the elongated hole is formed to be vertically symmetrical with respect to the central axial line of the side portion in the longitudinal direction and the shaft portion is formed to be vertically symmetrical with respect to the central axial line in the horizontal direction, The rotation of the belt fastening hook can be regulated at the same position.

1 is a perspective view of a belt length adjusting port according to an embodiment of the present invention;
Fig. 2 is a plan view of the belt-
3 is a cross-sectional view of the belt-
Fig. 4 is a side view of the belt-
5 is a sectional view taken along the line AA in Fig. 2
Fig. 6 is an explanatory diagram showing the use state of the belt length adjusting port
7 is a perspective view of a belt length adjusting port according to another embodiment of the present invention.
Fig. 8 is a plan view of the belt-
9 is a cross-sectional view of the belt-
10 is a side view of the belt-
11 is a cross-sectional view taken along line BB of Fig. 8
Fig. 12 is an explanatory view showing the use state of the belt length adjusting port
13 is a plan view showing an example of a conventional belt length adjuster
Fig. 14 is an explanatory diagram showing a use state of a conventional belt length adjusting port

The belt length adjusting means of the present invention is characterized in that the belt tightening fastener is held in an elongated hole formed in the side portion by a shaft portion of a non-circular cross section formed at both ends and a restricting means for restricting the rotation of the shaft portion in the long hole is formed, It is possible to prevent an excessive load from being applied when tightly tightening the belt wound around the fastening hook.

[Embodiment Mode]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the drawings showing one embodiment.

Fig. 1 is a perspective view of a belt length adjusting port according to an embodiment of the present invention, Fig. 2 is a plan view of the belt length adjusting port according to the present invention, and Fig. 3 is a transverse sectional view of the belt length adjusting port.

The belt length adjuster 10 is used for adjusting the length of the belt wound between two points or annular shapes. The belt length adjuster 10 includes a pair of side portions 11 and 11 formed in parallel at predetermined intervals, A first connecting portion 12 and a second connecting portion 13 which are respectively connected to the lengthwise ends of the side portions 11 and are loosely fitted between the long holes 14 formed along the longitudinal direction of the side portions 11, The space 15 enclosed by the pair of side portions 11 and 11 and the first connection portion 12 and the second connection portion 13 is located in the vicinity of the first connection portion 12 or the second connection portion 13 And a belt tightening fastener (16) movable in the direction of the belt.

As shown in Fig. 4, the side portion 11 has a spindle shape which is swollen at its center when viewed from the side, and a long hole 14 is formed in the center portion. The elongated hole 14 is formed in a substantially rectangular shape in which four corners are rounded and is opened in the space surrounded by the side portion 11, the first connection portion 12 and the second connection portion 13, and in the lateral direction have. A projecting portion 19, which is a restricting means 18 for restricting the rotation of the shaft portion 17, is protruded from the center of the long hole 14. The projecting portion 19 is formed such that the ceiling portion and the bottom portion of the elongated hole 14 are raised in a vertically symmetrical manner. Therefore, the center of the elongated hole 14 becomes smaller in height dimension of the hole, so that the gap between the elongated shaft portion 17 becomes narrower, and the projected portion 19 and the shaft portion 17 come into surface contact with each other. The projecting portion 19 may include an inclined surface 19a whose height gradually increases toward one side (center) of the longitudinal direction of the elongated hole 14.

The first connecting portion 12 and the second connecting portion 13 are formed of a plate member having a slightly thin thickness and the side portion 11 and the first connecting portion 12 and the second connecting portion 13 are formed by injection molding They are integrally manufactured in a frame shape by molding or the like.

The belt fastening fastener 16 is formed of a plate-shaped member whose cross section is substantially rectangular, and has shaft portions 17 of non-circular cross section at both ends thereof. The shaft portion 17 is formed to be thinly protruded from the main body of the belt tightening fastener and has a thin thickness at the center when viewed from the side. That is, the shaft portion 17 is symmetrical in the vertical direction and has a thinner thickness at its center. The belt tightening fastener 16 having such a configuration is held in the long hole 14 by the shaft portion 17 formed at both ends.

6, the shaft 17 is inserted into the elongated hole 14 even if the belt 23 is wound around the belt fastening hook 16 and is pulled in the direction of the arrow X, It is possible to prevent an excessive load from being applied due to the rotation angle of the belt fastening hook 16 being regulated. Therefore, it is possible to prevent a deformation of the belt length adjusting main body due to excessive rotation of the belt fastening fastener 16 and a failure in operation that the belt fastening fastener 16 does not return to the original state even if the belt is loosened .

Fig. 7 is a perspective view showing another embodiment of the belt length adjuster of the present invention, Fig. 8 is a plan view of the belt length adjuster, Fig. 9 is a transverse section view of the belt length adjuster, 8 is a sectional view taken along line BB of Fig.

Since the belt length adjusting port 20 of the present embodiment is the same as the first embodiment except for the shape of the elongated hole 21 and the shaft portion 22, the same constituent elements are denoted by the same reference numerals, do.

The long hole 21 is formed in a substantially rectangular shape in which four corners are rounded and is opened in the space surrounded by the side portion 11, the first connection portion 12 and the second connection portion 13 and in the lateral direction. A projecting portion 24, which is a restricting means 18 for restricting the rotation of the shaft portion 22, is protruded from the center of the long hole 21. The protruding portion 24 is formed such that the center of the ceiling portion and the center of the bottom portion of the elongated hole 21 are raised upward and downward symmetrically, respectively. Therefore, the height of the hole becomes smaller at the center of the elongated hole 21, so that the interval between the elongated shaft portion 22 and the elongated hole 21 becomes narrower.

The shaft portion 22 is formed at both ends of the belt tightening fastener 16 and is non-circular in cross section. The shaft portion 22 is formed to protrude from the main body of the belt fastening hanger thinly, and has a concave portion 22a at the center when viewed from the side. That is, the shaft portion 22 is vertically symmetrical and has a concave portion 22a formed at its center. The belt fastening fastener 16 having such a configuration is held in the long hole 21 by the shaft portion 22 formed at both ends.

12, the shaft portion 22 is inserted into the elongated hole 21 even if the belt 23 is wound around the belt fastener 16 as shown in Fig. 12, It is possible to prevent an excessive load from being applied due to the rotation angle of the belt fastening hook 16 being restricted. Therefore, it is possible to prevent a deformation of the belt length adjusting main body due to excessive rotation of the belt fastening fastener 16 and a failure in operation that the belt fastening fastener 16 does not return to its original state even if the belt is loosened .

The belt length adjuster of the present invention is not limited to buckles of the so-called ladder type, but can be used on the side of the buckle of the side release type or the front release type.

10,20 - Belt length adjustment 11 - Side
12 - first connection part 13 - second connection part
14 - Long hole 15 - Space
16 - Belt tightening hook 17 - Shaft
18 - Regulating means 19 -
19a - Slope 21 - Long hole
22 - shaft portion 22a - concave portion
23 - Belt 24 - Projection

Claims (7)

A belt length regulating opening used for adjusting the length of the belt wound between two points (points) or in a ring shape,
A pair of side portions formed in parallel at predetermined intervals,
A first connection portion and a second connection portion orthogonally connected to the lengthwise ends of the side portions,
The first connection portion and the second connection portion are loosely fitted between elongated holes formed along the longitudinal direction of the side portion, and the space surrounded by the pair of side portions, the first connection portion, and the second connection portion is moved in the direction close to the first connection portion or the second connection portion A possible belt fastening hook,
The belt fastening hook is held in the long hole by a shaft portion having a non-circular cross-section formed at both ends, and regulating means for regulating the rotation of the shaft portion in the long hole is formed,
Wherein when the belt wound on the belt fastening hook receives a tension in a direction of approaching either the first connecting portion or the second connecting portion, the belt length adjusting means regulates the swinging motion of the belt fastening fastener through the shaft portion.
The method according to claim 1,
Wherein the restricting means is a protruding portion formed so as to protrude into the elongated hole and to narrow the gap with the shaft portion loosely fitted.
The method of claim 2,
Wherein the projecting portion includes an inclined surface whose height gradually increases toward one of the longitudinal direction of the elongated hole.
delete The method according to claim 2 or 3,
And the projecting portion and the shaft portion are in surface contact with each other.
The method according to any one of claims 1 to 3,
Wherein the elongated hole is formed to be vertically symmetrical with respect to the central axis of the side portion in the longitudinal direction, and the shaft portion is formed to be vertically symmetrical with respect to the central axis in the horizontal direction. delete

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